Adsorption of arsenate, phosphate and humic acids onto acicular goethite nanoparticles recovered from acid mine drainage
| Autor: | Regina de Fátima Peralta Muniz Moreira, Humberto Jorge José, Danielle B. Luiz, Gianluca Li Puma, Solange Vandresen |
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| Rok vydání: | 2017 |
| Předmět: |
Acicular
Goethite Aqueous solution Process Chemistry and Technology Inorganic chemistry Arsenate 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology Acid mine drainage Phosphate 01 natural sciences Pollution chemistry.chemical_compound Adsorption chemistry visual_art visual_art.visual_art_medium Chemical Engineering (miscellaneous) Water treatment 0210 nano-technology Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | Journal of Environmental Chemical Engineering. 5:652-659 |
| ISSN: | 2213-3437 |
| DOI: | 10.1016/j.jece.2016.12.018 |
| Popis: | Acicular goethite nanoparticles (AGNs), obtained from the active treatment of acid mine drainage (AMD) on an industrial scale, were evaluated with respect to their capacity to adsorb the contaminants arsenate, phosphate and humic acids (HAs) in aqueous solution. Kinetics and equilibrium constants that describe the adsorption process were investigated. The adsorption capacity decreased in the order: HAs (37mgCg−1)>As(V) (20mgAs(V) g−1)>phosphate ions (13mgPO43−g−1). The adsorption capacity of the AGNs produced from acid mine drainage to remove arsenate, phosphate or humic acids are similar to those found for other synthetic iron oxides produced under controlled conditions at the laboratory scale. This study demonstrates the valorization of the AGNs product derived from acid mine drainage slurry waste arising from the mining of coal as an effective adsorbent materials for water treatment. |
| Databáze: | OpenAIRE |
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